Moment Method Solution of Electromagnetic Scattering and Radiation from Wire Attached to Conducting Body by New Technique for Junction Treatment

抄録

Scattering and radiation from a system of arbitrary shaped three dimensional conducting wire and body are investigated by the moment method. The wire and body scatterers are treated by the electric field integral equation, triangular shape expansion/testing functions through an identical process. A new technique is presented for treating the wire-body junction problem. The wire at the junction, from view point of the body, is presented by an equivalent triangular patch. Therefore the wire-body junction problem is changed to surface-surface junction problem and the surface junction is treated by overlapping method. In this technique the junction can be at any edge or very near to vertex and also no special attachment-mode is necessary. The moment method formulas are more simple and flexible than the attachment-mode technique. Computed input impedances or admittances are compared with measured or computed data of other authors and very good accuracy is obtained.